Проблема с разрешением экрана Sony Bravia при использовании Docky

Простой Метроном Баша

Использование

metronome.sh [beats per minute] [beats per measure]

Информация

Например

metronome.sh
metronome.sh 75    # 75 BPM
metronome.sh 120 3 # 120 BPM, 3 beats per measure

Сценарий

#!/bin/bash
# metronome.sh
# Is a metronome.

# Accentuated and unaccentuated sounds, respectively.
tick='/usr/share/sounds/ubuntu/stereo/dialog-information.ogg'
tock='/usr/share/sounds/ubuntu/stereo/button-toggle-on.ogg'

# Default BPM and beats per measure.
bpm=120
msr=4

echo_error(){
    # Error handler
    local basename="${0##*/}"
    local msg="$@"
    echo "$basename: $msg" 1>&2
}

# BPM argument
if [[ $1 ]]; then
    bpm_min=1
    bpm_max=600

    # Check that argument is a number within a range.
    if ! [[ $1 =~ ^[0-9]+$ ]] ||
        [[ $1 -lt $bpm_min ]] ||
        [[ $1 -gt $bpm_max ]]
    then
        echo_error "Beats per minute not in range [$bpm_min, $bpm_max]."
        exit 1
    fi

    bpm="$1"
fi

# Beats per measure argument
if [[ $2 ]]; then
    msr_min=1
    msr_max=16

    # Check that argument is a number within a range.
    if ! [[ $2 =~ ^[0-9]+$ ]] ||
        [[ $2 -lt $msr_min ]] || 
        [[ $2 -gt $msr_max ]]
    then
        echo_error "Beats per measure not in range [$msr_min, $msr_max]."
        exit 1
    fi

    measure="$2"
fi

# Get seconds per beat using bc.
# "-0.004" accounts for approximate execution time.
rest_duration="$(bc -l <<< "scale=5; 60/$bpm-0.004")"

echo "Metronome playing $bpm BPM, $msr beats per measure"
echo -n "Press Ctrl+C to cancel."

while true; do
    # Accentuated beat.
    for i in 1; do
        canberra-gtk-play --file="$tick" &
        sleep "$rest_duration"
    done

    # Unaccentuated beat(s).
    for i in $(seq 2 "$msr"); do
        canberra-gtk-play --file="$tock" &
        sleep "$rest_duration"
    done
done